Hitachi RAC-18SX8 Service Manual page 113

Operation diagram for filter cleaning (error detection 2)
Arrival error (lock)
ON
Power
OFF
Cleaning initiated
Product command
Initialization
--> dust box
OFF
Dust box -->
initialization
Limit Initialization
ON
switch side
OFF
Operation lamp
Cleaning lamp
Operation diagram for filter cleaning (error detection 3)
ON
Power
OFF
Cleaning initiated
Product command
Initialization
--> dust box
OFF
Dust box -->
initialization
ON
Limit Initialization
switch side
OFF
Operation lamp
Cleaning lamp
5''
3' 16'' 3' 53''
2'46''
5''
2'36''
Lit 4 seconds /
off 1 second
2'46''
5''
2'36''
Lit 4 seconds /
off 1 second
– 146 –
1. If the limit switch is not detected 3 minutes
16 seconds (= 2'46" +30":30" is the safety time)
after startup, the product will be considered
to have an arrival error.
2. If the startup-side limit switch is detected
during reversing, the product will stop for
5 seconds and restart itself in the direction
of advance.
3. If 2 arrival errors are finalized, the product
will be considered to have an error.
Cleaning settings can be selected
by double-pressing the remote
control unit (function selector on/off +
manual cleaning, held down for 5 seconds).
1. Reverse the current setting.
Cleaning enabled ⇔ disabled
2. In the case of an error,
this can cancel the display.
1. The product will be considered to
have a go-route error if the limit
switch is detected within 2 minutes
36 seconds (= 2'46" - 10":10" is the
safety time) after the dust box side
is started.
2. The product will be considered to
have an error when 2 go-route errors
are finalized.